CN103617886B - A kind of manufacture method of three-dimensional winding iron core resin insulating dry type transformer insulating cylinder - Google Patents
A kind of manufacture method of three-dimensional winding iron core resin insulating dry type transformer insulating cylinder Download PDFInfo
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- CN103617886B CN103617886B CN201310576190.7A CN201310576190A CN103617886B CN 103617886 B CN103617886 B CN 103617886B CN 201310576190 A CN201310576190 A CN 201310576190A CN 103617886 B CN103617886 B CN 103617886B
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- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical group [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 title claims abstract description 49
- 238000000034 method Methods 0.000 title claims abstract description 33
- 238000004519 manufacturing process Methods 0.000 title claims abstract description 32
- 238000004804 winding Methods 0.000 title claims abstract description 29
- 229920005989 resin Polymers 0.000 title claims abstract description 24
- 239000011347 resin Substances 0.000 title claims abstract description 24
- 239000000463 material Substances 0.000 claims abstract description 20
- 239000004593 Epoxy Substances 0.000 claims abstract description 14
- 238000003756 stirring Methods 0.000 claims description 7
- 230000002459 sustained effect Effects 0.000 claims description 4
- 239000003795 chemical substances by application Substances 0.000 claims description 3
- 239000004033 plastic Substances 0.000 claims description 3
- 238000009413 insulation Methods 0.000 description 5
- 229910000831 Steel Inorganic materials 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 239000010959 steel Substances 0.000 description 2
- 238000013036 cure process Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000003822 epoxy resin Substances 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 229910052742 iron Inorganic materials 0.000 description 1
- 229920000647 polyepoxide Polymers 0.000 description 1
- 238000007711 solidification Methods 0.000 description 1
- 230000008023 solidification Effects 0.000 description 1
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Abstract
The invention discloses a kind of manufacture method of three-dimensional winding iron core resin insulating dry type transformer insulating cylinder, three-dimensional winding iron core comprises three iron core column, for each iron core column, the concrete manufacturing process of insulating cylinder is: (1) is wound with low-voltage coil in advance in iron core column, in the outside of low-voltage coil, multiple interim stay is set again, at the outside coiling at least insulating tape be made up of epoxy preimpregnation material of one deck of multiple interim stay, thus form an insulating cylinder to be solidified in the outside of multiple interim stay; (2) at the outside coiling high-tension coil of described insulating cylinder to be solidified, the completely isolated described low-voltage coil of described insulating cylinder to be solidified and described high-tension coil; (3), after carrying out hot setting process to described transformer, described insulating cylinder to be solidified solidify to form the insulating cylinder of a hard; (4) multiple interim stay is extracted in the insulating cylinder of described hard.The manufacturing process of transformer insulating cylinder of the present invention is simple, and facilitate execute-in-place, the cost of material is low for insulating cylinder.
Description
Technical field
The present invention relates to transformer technology field, particularly relate to a kind of manufacture method of three-dimensional winding iron core resin insulating dry type transformer insulating cylinder.
Background technology
High-voltage coil and low-voltage coil due to three-dimensional winding iron core resin insulating dry type transformer is all coiling in iron core column, after the complete low-voltage coil of coiling, and coiling high-tension coil outside low-voltage coil, dismounting gear baffle after low-voltage coil and high-tension coil coiling and solidification complete.When device body assembles, will place an insulating cylinder between high-tension coil and low-voltage coil, insulating cylinder plays the electric insulation effect between high-tension coil and low-voltage coil; Because the upper and lower iron yoke of three-dimensional winding iron core is closed, so a complete closed cylindrical insulating cylinder is to being finally (because the upper yoke closed has blocked being inserted in of insulating cylinder) that can not directly put between high-tension coil and low-voltage coil.The common practice of prior art is when assembling transformer device body, two semicircular rigid insulation cylinders are put between high-tension coil and low-voltage coil, then the abutment joint of rigid insulation cylinder one piece of shrouding bonding is got up, operate cumbersome, and rigid insulation cylinder cost is high, increase the expense of product.
Summary of the invention
For above-mentioned technical problem, the invention provides a kind of manufacture method of three-dimensional winding iron core resin insulating dry type transformer insulating cylinder, the cost of manufacture of insulating cylinder of the present invention and the cost of material is low, facilitate field fabrication.
Technical scheme provided by the invention is:
A manufacture method for three-dimensional winding iron core resin insulating dry type transformer insulating cylinder, three-dimensional winding iron core comprises three iron core column, and for each iron core column, the concrete manufacturing process of insulating cylinder is:
(1) in described iron core column, low-voltage coil is wound with in advance, in the outside of low-voltage coil, multiple interim stay is set again, at the outside coiling at least insulating tape be made up of epoxy preimpregnation material of one deck of multiple interim stay, thus form an insulating cylinder to be solidified in the outside of multiple interim stay;
(2) at the outside coiling high-tension coil of described insulating cylinder to be solidified, the completely isolated described low-voltage coil of described insulating cylinder to be solidified and described high-tension coil;
(3), after carrying out hot setting process to described transformer, described insulating cylinder to be solidified solidify to form the insulating cylinder of a hard;
(4) multiple interim stay is extracted in described insulating cylinder.
Preferably, in the manufacture method of described three-dimensional winding iron core resin insulating dry type transformer insulating cylinder, in described step (1), the thickness of described insulating tape is 0.16 ~ 0.5mm, the width of described insulating tape is consistent with the height of described low-voltage coil, at the insulating tape be made up of epoxy preimpregnation material of the outside coiling 5 ~ 10 layers of multiple interim stay; In described step (4), the gross thickness of described insulating cylinder is 1.5 ~ 3.0mm.
Preferably, in the manufacture method of described three-dimensional winding iron core resin insulating dry type transformer insulating cylinder, in described step (3), the temperature of described hot setting process is 100 ~ 140 DEG C.
Preferably, in the manufacture method of described three-dimensional winding iron core resin insulating dry type transformer insulating cylinder, in described step (1), multiple interim stay is uniformly distributed along the circumference of described low-voltage coil, each interim stay extends along the axis of described low-voltage coil, and equal with described low-voltage coil height, the outer surface of each interim stay is coated with and is brushed with one deck release agent.
Preferably, in the manufacture method of described three-dimensional winding iron core resin insulating dry type transformer insulating cylinder, described interim stay comprises:
Chute, it comprises front of the slot portion, groove sidepiece and trench bottom, described chute has the first opening in the side relative with described trench bottom, in the side relative with described front of the slot portion, there is the second opening, described trench bottom is the first inclined-plane, to make the degree of depth of described chute increase gradually from described front of the slot portion to described second opening, described groove sidepiece has the first block that the inside to described chute is stretched out;
Slide bar, it comprises bottom bar leading section, masthead portion, bar sidepiece, bar and rod rear end portion, be the second inclined-plane bottom described bar, to make the height of described slide bar increase gradually from described bar leading section to described rod rear end portion, described bar sidepiece has outwardly directed second block;
Wherein, when the insulating tape that coiling is made up of epoxy preimpregnation material, when described slide bar is positioned at described chute, described bar leading section is conflicted to described front of the slot portion, contact with described trench bottom bottom described bar, described chute extends by described second opening in described rod rear end portion, and described masthead portion exceeds certain distance than described front of the slot portion, and described insulating tape is wound in described masthead portion;
When stirring described interim stay in described insulating cylinder, described slide bar slides along described trench bottom to the outside of described chute, until described second block is kept out to described first block, thus stop described slide bar to come off from described chute, and described masthead portion and described front of the slot portion are on sustained height, continue to stir described interim stay, so that described interim stay is extracted in described insulating cylinder.
Preferably, in the manufacture method of described three-dimensional winding iron core resin insulating dry type transformer insulating cylinder, the cross section of described slide bar is rectangular; The cross section of described chute is also rectangular.
Preferably, in the manufacture method of described three-dimensional winding iron core resin insulating dry type transformer insulating cylinder, described masthead portion is smooth plane.
Preferably, in the manufacture method of described three-dimensional winding iron core resin insulating dry type transformer insulating cylinder, described interim stay is plastic material.
Preferably, in the manufacture method of described three-dimensional winding iron core resin insulating dry type transformer insulating cylinder, when the insulating tape that coiling is made up of epoxy preimpregnation material, described masthead portion exceeds 1 ~ 1.5mm than described front of the slot portion.
In the manufacture method of three-dimensional reel iron core transformer insulating cylinder of the present invention, first in iron core column, low-voltage coil is wound with, then at the multiple interim stay of the outer setting of low-voltage coil, again at the insulating tape that the outside coiling of multiple interim stay is made up of epoxy preimpregnation material, form an insulating cylinder to be solidified; Coiling high-tension coil is continued outside above-mentioned insulating cylinder to be solidified; Then to the process of transformer hot setting, thus make above-mentioned insulating cylinder to be solidified form the insulating cylinder of a hard, multiple interim stay is extracted in insulating cylinder, between low-voltage coil and high-tension coil, just defines the insulating cylinder meeting insulating requirements.The manufacturing process of insulating cylinder of the present invention is simple, and facilitate execute-in-place, the cost of material is low for insulating cylinder.
Accompanying drawing explanation
Fig. 1 is the structural representation (not shown high-tension coil) of transformer of the present invention;
Fig. 2 is the structural representation (slide bar is positioned at chute) of interim stay of the present invention;
Fig. 3 is the A-A cross section view of Fig. 2;
Fig. 4 is the structural representation (slide bar is along slide) of interim stay of the present invention;
Fig. 5 is the A-A cross section view of Fig. 4.
Embodiment
Below in conjunction with accompanying drawing, the present invention is described in further detail, can implement according to this with reference to specification word to make those skilled in the art.
As shown in Figure 1, the invention provides a kind of manufacture method of three-dimensional winding iron core resin insulating dry type transformer insulating cylinder, it is characterized in that, three-dimensional winding iron core 1 comprises three iron core column 17, and for each iron core column, the concrete manufacturing process of insulating cylinder is:
(1) in described iron core column, low-voltage coil 2 is wound with in advance, in the outside of low-voltage coil, multiple interim stay 3 is set again, at the outside coiling at least insulating tape be made up of epoxy preimpregnation material of one deck of multiple interim stay, thus form an insulating cylinder to be solidified in the outside of multiple interim stay;
(2) at the outside coiling high-tension coil of described insulating cylinder to be solidified, the completely isolated described low-voltage coil of described insulating cylinder to be solidified and described high-tension coil;
(3), after carrying out hot setting process to described transformer, described insulating cylinder to be solidified solidify to form the insulating cylinder of a hard; In high temperature cure process, epoxy resin insulating layers between layers can interpenetrate and bond, and which floor insulating tape is bonded together completely, forms a complete hard insulating cylinder 16;
(4) multiple interim stay is extracted in the insulating cylinder of described hard.
Before making insulating cylinder, first in iron core column, low-voltage coil will be wound with in advance, and before coiling low-voltage coil, first can a pair gear baffle be set in iron core column, a pair gear baffle may be limited to position iron core column being arranged low-voltage coil, insulating cylinder and high-tension coil, after described step (3) completes, gear baffle can be dismantled.The installation and removal of gear baffle can adopt prior art, do not repeat them here.After gear baffle dismounting is lower, then carry out step (4).
In above-mentioned steps (2), high-tension coil is not be directly wound on insulating cylinder to be solidified, but on coiling steel mould, until to after the process of transformer hot setting, interim stay and steel mould are all removed.
In step (1), can be that an interim stay is often set, just around one section of insulating tape; Also can be the outside whole interim stays being fixed on low-voltage coil, and then coiling insulating tape.
One preferred embodiment in, in described step (2), the thickness of described insulating tape is 0.16 ~ 0.5mm, and at the insulating tape be made up of epoxy preimpregnation material of the outside coiling 5 ~ 10 layers of multiple interim stay, the width of described insulating tape is consistent with the height of described low-voltage coil; In described step (4), the gross thickness of described insulating cylinder is 1.5 ~ 3.0mm, to meet the electric insulation requirement of low-voltage coil and high-tension coil.After coiling completes, also the seam crossing of insulating tape is clinged, prevent insulating tape from coming off.
One preferred embodiment in, in described step (3), the temperature of described hot setting process is 100 ~ 140 DEG C.
One more preferred embodiment in, in described step (2), multiple interim stay is uniformly distributed along the circumference of described low-voltage coil, and each interim stay extends along the axis of described low-voltage coil, and equal with described low-voltage coil height; The outer surface of each interim stay is coated with and is brushed with one deck release agent, is convenient to extracting of interim stay.Like this, the insulating cylinder of the cylindrical shape completely coaxial with low-voltage coil can just be obtained.
Conveniently interim stay is extracted from insulating cylinder, have also been devised the structure of interim stay 3.Preferably, described interim stay comprises: chute 4, it comprises front of the slot portion 6, groove sidepiece 5 and trench bottom 14, described chute has the first opening in the side relative with described trench bottom, in the side relative with described front of the slot portion, there is the second opening, described trench bottom 14 is the first inclined-plane, and to make the degree of depth of described chute 4 increase gradually from described front of the slot portion to described second opening, described groove sidepiece has the first block 7 that the inside to described chute is stretched out; Slide bar 9, it to comprise bottom bar leading section 11, masthead portion 13, bar sidepiece 12, bar 15 and rod rear end portion 10, bottom described bar, 14 is the second inclined-plane, and to make the height of described slide bar increase gradually from described bar leading section to described rod rear end portion, described bar sidepiece has outwardly directed second block 8; Wherein, when the insulating tape that coiling is made up of epoxy preimpregnation material, when described slide bar 9 is positioned at described chute 4, described bar leading section 11 is conflicted to described front of the slot portion 6, contact with described trench bottom bottom described bar, described chute extends by described second opening in described rod rear end portion, and described masthead portion exceeds certain distance than described front of the slot portion, and described insulating tape is wound in described masthead portion (see Fig. 2 and Fig. 3); When stirring described interim stay in described insulating cylinder, described slide bar slides along described trench bottom to the outside of described chute, until described second block is kept out to described first block, thus stop described slide bar to come off from described chute, and described masthead portion and described front of the slot portion are on sustained height, continue to stir described interim stay, so that described interim stay is extracted (see Fig. 4 and Fig. 5) in described insulating cylinder.
Specifically, when slide bar is positioned at chute, masthead portion exceeds front of the slot portion certain distance d; Because trench bottom is the first inclined-plane, the degree of depth of chute increases from front of the slot portion gradually to the second opening, and be the second inclined-plane bottom bar, the height of slide bar increases from bar leading section gradually to rod rear end portion, along with slide bar slides outside chute, masthead portion progresses into in chute, forms an annular gap gradually between masthead portion and the inwall of insulating cylinder, when masthead portion and front of the slot portion are in sustained height, the width of the annular gap between masthead portion and the inwall of insulating cylinder is d; Continue to stir interim stay, interim stay will be easy to extract in insulating cylinder.
One preferred embodiment in, the cross section of described slide bar is rectangular; The cross section of described chute is also rectangular.
One preferred embodiment in, described masthead portion is smooth plane, thus makes slide bar easily depart from insulating cylinder.
One preferred embodiment in, described interim stay is plastic material.
One preferred embodiment in, when the insulating tape that coiling is made up of epoxy preimpregnation material, described masthead portion exceeds 1 ~ 1.5mm than described front of the slot portion.
Although embodiment of the present invention are open as above, but it is not restricted to listed in specification and execution mode utilization, it can be applied to various applicable the field of the invention completely, for those skilled in the art, can easily realize other amendment, therefore do not deviating under the universal that claim and equivalency range limit, the present invention is not limited to specific details and illustrates here and the legend described.
Claims (8)
1. a manufacture method for three-dimensional winding iron core resin insulating dry type transformer insulating cylinder, is characterized in that, three-dimensional winding iron core comprises three iron core column, and for each iron core column, the concrete manufacturing process of insulating cylinder is:
Step (1) is wound with low-voltage coil in advance in described iron core column, in the outside of low-voltage coil, multiple interim stay is set again, at the outside coiling at least insulating tape be made up of epoxy preimpregnation material of one deck of multiple interim stay, thus form an insulating cylinder to be solidified in the outside of multiple interim stay;
Step (2) at the outside coiling high-tension coil of described insulating cylinder to be solidified, the completely isolated described low-voltage coil of described insulating cylinder to be solidified and described high-tension coil;
After step (3) carries out hot setting process to described transformer, described insulating cylinder to be solidified solidify to form the insulating cylinder of a hard;
Multiple interim stay is extracted by step (4) in described insulating cylinder;
Described interim stay comprises:
Chute, it comprises front of the slot portion, groove sidepiece and trench bottom, described chute has the first opening in the side relative with described trench bottom, in the side relative with described front of the slot portion, there is the second opening, described trench bottom is the first inclined-plane, to make the degree of depth of described chute increase gradually from described front of the slot portion to described second opening, described groove sidepiece has the first block that the inside to described chute is stretched out;
Slide bar, it comprises bottom bar leading section, masthead portion, bar sidepiece, bar and rod rear end portion, be the second inclined-plane bottom described bar, to make the height of described slide bar increase gradually from described bar leading section to described rod rear end portion, described bar sidepiece has outwardly directed second block;
Wherein, when the insulating tape that coiling is made up of epoxy preimpregnation material, when described slide bar is positioned at described chute, described bar leading section is conflicted to described front of the slot portion, contact with described trench bottom bottom described bar, described chute extends by described second opening in described rod rear end portion, and described masthead portion exceeds certain distance than described front of the slot portion, and described insulating tape is wound in described masthead portion;
When stirring described interim stay in described insulating cylinder, described slide bar slides along described trench bottom to the outside of described chute, until described second block is kept out to described first block, thus stop described slide bar to come off from described chute, and described masthead portion and described front of the slot portion are on sustained height, continue to stir described interim stay, so that described interim stay is extracted in described insulating cylinder.
2. the manufacture method of three-dimensional winding iron core resin insulating dry type transformer insulating cylinder as claimed in claim 1, it is characterized in that, in described step (1), the thickness of described insulating tape is 0.16 ~ 0.5mm, the width of described insulating tape is consistent with the height of described low-voltage coil, at the insulating tape be made up of epoxy preimpregnation material of the outside coiling 5 ~ 10 layers of multiple interim stay; In described step (4), the gross thickness of described insulating cylinder is 1.5 ~ 3.0mm.
3. the manufacture method of three-dimensional winding iron core resin insulating dry type transformer insulating cylinder as claimed in claim 2, it is characterized in that, in described step (3), the temperature of described hot setting process is 100 ~ 140 DEG C.
4. the manufacture method of three-dimensional winding iron core resin insulating dry type transformer insulating cylinder as claimed any one in claims 1 to 3, it is characterized in that, in described step (1), multiple interim stay is uniformly distributed along the circumference of described low-voltage coil, each interim stay extends along the axis of described low-voltage coil, and equal with described low-voltage coil height, the outer surface of each interim stay is coated with and is brushed with one deck release agent.
5. the manufacture method of three-dimensional winding iron core resin insulating dry type transformer insulating cylinder as claimed in claim 4, it is characterized in that, the cross section of described slide bar is rectangular; The cross section of described chute is also rectangular.
6. the manufacture method of three-dimensional winding iron core resin insulating dry type transformer insulating cylinder as claimed in claim 4, it is characterized in that, described masthead portion is smooth plane.
7. the manufacture method of three-dimensional winding iron core resin insulating dry type transformer insulating cylinder as claimed in claim 4, it is characterized in that, described interim stay is plastic material.
8. the manufacture method of three-dimensional winding iron core resin insulating dry type transformer insulating cylinder as claimed in claim 4, it is characterized in that, when the insulating tape that coiling is made up of epoxy preimpregnation material, described masthead portion exceeds 1 ~ 1.5mm than described front of the slot portion.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310576190.7A CN103617886B (en) | 2013-11-18 | 2013-11-18 | A kind of manufacture method of three-dimensional winding iron core resin insulating dry type transformer insulating cylinder |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310576190.7A CN103617886B (en) | 2013-11-18 | 2013-11-18 | A kind of manufacture method of three-dimensional winding iron core resin insulating dry type transformer insulating cylinder |
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| Publication Number | Publication Date |
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| CN103617886A CN103617886A (en) | 2014-03-05 |
| CN103617886B true CN103617886B (en) | 2015-12-30 |
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Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN104851589A (en) * | 2015-05-08 | 2015-08-19 | 海鸿电气有限公司 | Continuous insulating cylinder of three-dimensional wound core transformer and manufacturing method thereof |
| CN106935378B (en) * | 2017-05-08 | 2018-03-30 | 中变集团上海变压器有限公司 | A kind of volume iron core of amorphous alloy transformer |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4649640A (en) * | 1984-04-04 | 1987-03-17 | Kabushiki Kaisha Toshiba | Method for manufacturing a molded transformer |
| CN1222746A (en) * | 1998-01-09 | 1999-07-14 | 魏胜璋 | Transformer with thin insulating layer and deposited filler resin and its making method |
| CN201112083Y (en) * | 2007-11-13 | 2008-09-10 | 青岛青波变压器股份有限公司 | Iron-core transformer winding |
| CN101630582A (en) * | 2009-06-30 | 2010-01-20 | 江西大族电源科技有限公司 | Body insulation structure of dry-type transformer with three-dimensional rolled iron core and manufacturing process thereof |
| CN101777418A (en) * | 2009-01-08 | 2010-07-14 | 浙江广天变压器有限公司 | Method for processing dry type transformer insulating cylinder |
| CN202871508U (en) * | 2012-09-05 | 2013-04-10 | 广东岭先技术投资企业（有限合伙） | Transformer module combination high-voltage coil |
-
2013
- 2013-11-18 CN CN201310576190.7A patent/CN103617886B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4649640A (en) * | 1984-04-04 | 1987-03-17 | Kabushiki Kaisha Toshiba | Method for manufacturing a molded transformer |
| CN1222746A (en) * | 1998-01-09 | 1999-07-14 | 魏胜璋 | Transformer with thin insulating layer and deposited filler resin and its making method |
| CN201112083Y (en) * | 2007-11-13 | 2008-09-10 | 青岛青波变压器股份有限公司 | Iron-core transformer winding |
| CN101777418A (en) * | 2009-01-08 | 2010-07-14 | 浙江广天变压器有限公司 | Method for processing dry type transformer insulating cylinder |
| CN101630582A (en) * | 2009-06-30 | 2010-01-20 | 江西大族电源科技有限公司 | Body insulation structure of dry-type transformer with three-dimensional rolled iron core and manufacturing process thereof |
| CN202871508U (en) * | 2012-09-05 | 2013-04-10 | 广东岭先技术投资企业（有限合伙） | Transformer module combination high-voltage coil |
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Denomination of invention: A manufacturing method of resin insulated dry-type transformer insulating cylinder with three-dimensional rolled iron core Effective date of registration: 20220331 Granted publication date: 20151230 Pledgee: Guangxi Guihui Financing Guarantee Co.,Ltd. Pledgor: GUANGXI NANBAOTE ELECTRIC MANUFACTURING CO.,LTD. Registration number: Y2022450000026 |
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Denomination of invention: A manufacturing method for the insulation cylinder of a three-dimensional coil iron core resin insulated dry type transformer Effective date of registration: 20230608 Granted publication date: 20151230 Pledgee: Guangxi Guihui Financing Guarantee Co.,Ltd. Pledgor: GUANGXI NANBAOTE ELECTRIC MANUFACTURING CO.,LTD. Registration number: Y2023450000085 |
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Address after: 530007 No. 32 Lianyuan Road, Xixiangtang District, Nanning City, Guangxi Zhuang Autonomous Region Patentee after: GUANGXI NANBAOTE ELECTRIC MANUFACTURING CO.,LTD. Address before: 1-3 / F, South and North building, No.2, Zhengxin Science Park, No.2, Gaoxin 7th Road, high tech Zone, Nanning, Guangxi 530007 Patentee before: GUANGXI NANBAOTE ELECTRIC MANUFACTURING CO.,LTD. |